Clamp



luly 23, 1935.

E. J. HORNUNG I 2,008,669

CLAMP Filed Feb. 26, 1934 INVENTOR E. r/THORNUNG ATTORNEY Patented July23, 1935 so STAT- 5 c .i. 7 t n 1'1; Y j 11 claims. This inventionrelates to clamps and more par} ticularlyto hose'clamps. 'In a hoseclamp particularly of the type employed inth'e cooling systems of gas"engines, it

5 is iessential that the clamp be of such construcpear fromv thedetailed description and claims when'taken with the'drawihg in'whichFig. 1* is a perspective view of a Tpr'eferrd'form of clamp; Fig. 2 is aperspective-view of a slightly diif'erent form of clamp; Fig. 3'iscarper'spective view of "a I modified form oft-clamp, and "Fig. 3a is afragmentary sectional" view thereof: taken substan-* tially on' the line3+3 of Fig. 3;, Fig. 4 is'a perspective view of an additional modified'f'orm of clamp, "and Fig. 4a is a fragmentary sectional view thereoftakenrsubstantiallyon"theline 4'-'4 of Fig. 4; Fig. 5 is a perspectiveview of another modified form of clamp; and Fig. 6 isia perspective view.of a still further modifiedio'rmof'clamp'; Referring especially to Fig.11,.5 designates a strip having therein one. 'large centralaperture andtwo small lateral-aperturesjand 6 designates ai'strip' similar in shapeto strip *5 and'having similar apertures therein," except that itscentral aperture is "threaded. 'A' piece ofrwi're '1 has one of itsends"8 extending througha lateral aperture in the strip '5 and then clinchedback-upon itself, while the other end 9 ofthislpiece like wise extendsthrough a correspondingaperture in the strip .6 where it is clinchedupon itself. Aseccnd piece; of wire ill has'its'freeend's simie laflyextending through theother lateral iaper; tin'esefithe strips 5 and;Efwhere thesezends are clinched upon themselves in a manner similar tothe ends 8 and 9 of the piece I. A bolt/H passesrthroughthe centralaperture in :the strip iandlmakes threaded engagement with the centralthreaded aperture in' the strip '6 so that these strips cail bedrawn'together or separated ;to tighten or loosen theclamp' as desired."In order to bridge the. space. between the strip 5 and iii a single loopof wire I 2 has'it's free ends attached tothe strip '6 and hasitsloopedend extending between the wirsland fi adjacent strips I'he fastening ofthe loop i=2 to the strip fi isiefiected lay-wrapping the partit of theloop about this Application February 26, 1934; Serial No. 712,958,; a

strip"with the end po'rtio'nof the wire being clinched against one faceof the mentioned strip. Similarly. the other end portion of the 'wire'oftheiloo'p: l2 'has' a part i5 wrappedabout the. stripe with the extremeend portion is of :the wire clinched against one face of thestrip. Inthis manner the loop 12 is securely fastened 'to the strip 8. p. J

In't-he formrofv clamp shownin Fig;--2 there are two g-metaljstrips 20:and;2| each having therein twolateralapertures and a large centralapertureof which the central apertureinythe strip 2| 'isr'threaded. Apiece of wire,22jof arcuate form has one free end 23' extending'throughlateral aperture in the strip 26! where it is clinched upon itself.- Theother endof this wire',-as indicated at extends through a lateralaperture in the strip 2| and after being looped aboutv'a' portion of;this strip extends as part '25 having its freeend, 26 projecting intothespace between the wires -22-and 21'adjacent the, strip 263. A secondpiecexof wire 21 identical in'shape and arrangement with the wire 22,has one free end 28 extending-through the other lateral aperture of thestrip qzlkwhere it is clinched backfupon itself. Theother free end ofthey Wire's? after it is looped about a portion of the stripiat 29; thenextendsasa part -30 tohridge the gap-leetween the strips ZBand 2|. Wirehas its'free end 32 extendinginto the space between the wires 22 and 21adjacent its strip 253. Thus thisform ofcla mp includes lout two piecesof WHB; -v i In'themodified form of the invention shown in Figs. 3 and3a thereare provided two'notched or apertured; metal strips 35 and,wherein the notches in the strip 35 extend along its edges while in thestripifefi-thenotches are provided only in theends thereof. Thestripsjfi, and 36 each has a central aperture thereinofwhich theaperture-in-the strip; 36 is threaded; Aloop of wire 4 bridges ;thezg apb etweenj the strips 35 and 3S and has its, free ends AI and 42 wrappedaround a centra1stud,43; in the strip-BE which stud is formed by thementioned notches. A single piece of wire intermediate of its ends iswrapped about the ends 4;! and 42 of the loop in the mentioned notchesin strip 35 and is then bent into arcuate form as indicated at. and 45.-The free end 46 of,,piece M is inserted into the end notch in the strip35 and-the material at this end of thisstrip is then compressed to gripthe portion of;wire adjacent its upset end 46. The end portion of thearcuate'part '45 of the wire engages an end notch in the strip 36, beinggripped therein adjacent the upset free end 41 of the wire. Preferablythe upset ends 46 and 41 are sharply bent at right angles to engage theedge of the strip 36. A bolt 39 passing through the central aperture inthe strip 35 makes threaded engagement with the central threadedaperture in the strip 36 so that the clamp can be loosened or tightenedat will.

The modified form of the invention shown in Figs. 4 and 4a is identicalin constructionwith the form of clamp shown in Fig.3, except that theend portions 46 and 41 of the arcuate portions 44 and 45 of the wireextend through lateral apertures in the piece 36a and are there clinchedupon themselves, instead of being fastened in the end notches orapertures of piece 36 as shown in Fig. 3. To facilitate theunderstanding of the construction of this form of clamp thecorresponding parts thereof are designated by the same referencecharacters as were used in connection with corresponding parts of theclamp disclosed in Figs. 3 and 3a.

In the form of the invention shown in Fig. 5,"a strip 50 having acentrally apertured upstanding part and an angular portion is provided.The clamp also includes a strip 52 having a lateral notch and endnotches or apertures therein as well as a central threaded aperture. Asingle piece of wire bent intermediate of its ends as indicated at 55 toengage the notches in the strip 52, is then shaped to form the arcuateparts 54 and 56. The free end of the wire part 54 extends through alateral opening in the angular portion 5 I, and is then bent back uponitself at 53 to grip one surface of the portion 5|. The arcuate wirepart 56 similarly extends through a lateral opening in the angularportion 5| and is then bent back upon itself at 51 to grip one surfaceof this portion. A second piece of wire 58 is formed into a loop tobridge the space between the strips 50 and 52 with its free endextending between the wire parts 54 and 56 adjacent the strip 52. Theends of the wire 58 are attached to the strip 50 by being insertedthrough lateralopenings therein and being then bent back upon themselvesas indicated at 59 and'60 to grip the surface of the portion 5|.

In the form of the invention shown in Fig. 6, a metal strip 65 having anupstanding part with a central aperture therein and an angular portion66, is provided. A second metal strip 61 having a central threadedaperture therein and having a lateral notch and end notches or aperturestherein, is also provided. In this form of clamp but a single piece ofwire is employed. This piece of wire is bent intermediate of its ends asindicated at 13 to engage the notches in the strip 61. Thereafter, theparts of this wire are shaped into arcuate form as indicated at 69 and69. The Wire part 68 after being inserted in a lateral opening in theangular portion 66, is wrapped around the edge of this portion to extendas a bridge H between the strips 65 and 61, the free end of this bridgeextending between the portions 68 and 69 adjacent the strip 61.Similarly, the wire part 69 extends through a lateral opening in theangular portion 66 and is wrapped around an edge of this portion toextend as indicated at 14 as a bridge across the space between the strip65 and 6Thaving its free end extending into the space between the parts68 and 69 adjacent the strip 61.

From the foregoing disclosure it will be seen that the clamp of thisinvention is sturdy in construction and is simple and economical tomanufacture.

What I claim is:

1. In a clamp, two strips having apertures therein, arcuate portions ofwire connecting said strips and having their end portions respectivelyengaging the walls of said apertures, wire portions carried by one stripand projecting adjacent the other strip, and means for adjusting saidstrips toward and away from each other.

2. In a clamp, two spaced strips having apertures therein, spacedarcuate portions of wire connecting said strips and having their endportions respectively engaging the walls of said apertures, wireportions carried by one strip and projecting adjacent the other strip tobridge the space between said strips, and means for adjusting saidstrips toward and away from each other.

3. In a clamp, two spaced strips having apertures therein, two arcuatepieces of wire having their ends respectively attached in the aperturesin said strips, wire portions bridging the space between said strips,and means for adjusting said strips toward and awayfrom each other.

4. In a. clamp, two spaced strips having apertures therein, a singlepiece of wire formed into two arcuate parts engaging the wallsof theapertures in said strips, portions of said wire bridging the spacebetween said strips; :and means for adjusting said strips toward andaway from each other.

5. In a clamp, 'two strips, one of which is notched at its edges, apiece of wire bent intermediate of its ends to engage the notches insaid strip, arcuate portions of said wire attached to said other strip,and means for adjusting said strips toward and away from each other.

6. In a clamp, two strips, one which is notched at certain of its edges,apiece of wire bent'inter mediate its ends to engage the notches invsaid strip, arcuate portions of'said wire attached to said other strip,wire portions engaging one of said strips and projecting toward saidother strip to bridge the space between said strips, and means foradjusting said strips toward and away from each other.

7. In a clamp, two spaced strips, one of which is notched at certain ofits edges, a piece of wire bent intermediate of its ends to engage thenotches in said strip, arcuate portions of said wire attached to saidother strip a portion of said wire engaging one of said strips to bridgethe space therebetween, and means for adjusting said strips toward andaway from each other.

8. In a clamp, two strips, one of which is notched at certain of itsedges, a piece of wire bent intermediate of its ends to engage thenotches in said strip, arcuate portions of said wire attached to saidother strip, portions of said wire engaging said last-mentioned stripand projecting toward said notched strip to bridge the space betweensaid strips, and means for adjusting said strips toward and away fromeach other.

9. In a. clamp, two strips, arcuate portions of wire connecting saidstrips, a loop of wire having its ends wrapped around one of saidstrips, the free end of said loop projecting adjacent the other strip tobridge the space between said strips, and means for adjusting saidstrips toward and away from each other.

10. In a clamp, two strips, two arcuate pieces of wireconnecting saidstrips, 8. loop of wire hav ing its ends wrapped around one ofvsaidstrips, the free end of said loop projecting adjacent the otherstrip to bridge the space between said strips, and means for adjustingsaid strips toward and away from each other.

11. In a. clamp, two spaced strips, one of which 5 is provided with anotch in at least one of its edges, two arcuate portions of wire havingends attached to one strip and other ends fastened in. thenotch in saidother strip, wire portions bridging the space between said strips, andmeans for adjusting said strips toward and away from each other.

ELIAS J. I-IORN'UNG.

